Battle Spirits [Re] 絶界の空
Battle Spirits [Re] Zekkai No Ku
Also known as Battle Spirits [Re] 絶界の空
The story
Keio 3, Hinomoto, Eito. As the Bakumatsu throws Japan into turmoil, young Kuu Bashin dreams of becoming stronger through Standard Battle Spirits. His world changes when he encounters Ajara Zetsu, a wandering samurai and formidable Eternal Battler pursued by anti-shogunate forces. As the worlds of Standard and Eternal Battle collide, Kuu is pulled into Zetsu’s journey—and sets history in motion. (Source: Crunchyroll)
Synopsis supplied by AniList; Yume has not independently verified its authorship or rights status.Promotional video
Series trailer
Promotional media supplied by AniList and checked through YouTube on Oct 9, 2026. This is not an episode or streaming-availability confirmation.
Verified streaming availability
Official episodes on YouTube
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